78659320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47963}}^1$

素因数の和:48015

約数の個数: 32

約数和(自身を含む): 181303920

約数和(自身を除く): 102644600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 47963, 95926, 191852, 239815, 383704, 479630, 959260, 1918520, 1966483, 3932966, 7865932, 9832415, 15731864, 19664830, 39329660, 78659320]

約数ペア:

[(1, 78659320), (2, 39329660), (4, 19664830), (5, 15731864), (8, 9832415), (10, 7865932), (20, 3932966), (40, 1966483), (41, 1918520), (82, 959260), (164, 479630), (205, 383704), (328, 239815), (410, 191852), (820, 95926), (1640, 47963)]